The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1999
Filed:
Jul. 13, 1998
Applicant:
Inventor:
Peter Preller, Munchen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 21 ;
Abstract
A switched-mode power supply includes a circuit device with which a primary side is fed by a significantly reduced rectified voltage derived from the AC mains power supply voltage, during a standby operating mode. A phase gating control configuration, a capacitive voltage divider or a step-down controller are preferably used therefor. Power consumption in the standby operating mode is reduced approximately in proportion to the square of the primary-voltage reduction factor.